Improvement in the manufacture of elastic hose or tubing



Patented July 14, 1863.

UNITED STATES PATENT OFFICE.

THOMAS J. MAYALL, or' EOXBUEY, MASSACHUSETTS.

IMPRVEMENT IN THE MANUFACTURE OF ELASTlC HSE 0R TUBING.

Specification forming part of Letters Patent No. 39,238, dated J nly 14, 1863.

To a/ZZ whom t may concerm.

Be it known that I, THOMAS J MAYALL, of Roxbury, in the countyof Norfolk and State of Massachusetts, have invented certain new and useful Improvements in the Manufacture of Hose or Tubing for Conveying Liquids; and I do hereby declare that the following description, taken in connection with the accompanying drawings, hereinafter referred to, forms a full and exact specication of the same, wherein I have set forth the nature and principles ot my said improvements,'whereby my invention may be distinguished from all others otasmilar class, together with such parts as 1 claim and desire to have secured to me by Letters Patent. l

The presert improvements nave for theirobject the formation of lighterand stronger hose or tubing for conducting liquids than heretofore used, and are designed more particularly to take the place of the ordina-ry rubber or gutta-percha hose .now most commonlyT preferred.

'lhe principal objections to rubber or gutta percha' hose consist in the `fact that great strengthvcannot be oblained without too great -an increase in bulk and weight to render its use practicable.

My improvement consists in formluga hose Lby weavin g or braiding arounda tube'of rubber or gutta-percha, or a tube composed of ,tibrous materials and coated with an india- 'or braided around the inner tube, andnot simply wound around or about t-he same, as this latter method would not give the strength de sired, the threads, 'moreover,-being liable to become loose and to unwind by severe usage.y

The outer covering of. woven or braided matevials may, if desirable, be saturated with or 'have incorporated in it rubber or gutta-percha compounds; but I do not consider `this as absolutely essential. This form of hose combines the great requisites necessary in tubes for conducting liquids under pressure-viz., lightness and strength, and particularly resistance to transverse strains.

One form ot' my improved hose is represented in the accompanying drawings, of which Figure l is a plan or top view, and Fig. 2 a transverse section. This precise form ot' hose, however, it is evident, need not be adhered to, as there are many obvious .modifications thereof` that may be made without de parting from the principles of my invention. For instance, the hose thus formed may be coated with a coating of rubber orgutta-percha cement, or a tube ot' rubber or gutta-percha may be slipped over the Woven covering.

I will now proceed to describe in detail one of the modes I have found most preferable for making my improved hose. .I take a mandrel, of suitable size for the required bore of the hose, and pass over the same a tube, a a, of india-rubber or gutta-pe'rcha, made in any proper manner. Around this is woven or braided twine, wire, or other similar threads, so as to form a firm and uniform outer tube, bV b, thereon. The weaving or braiding may be done either by hand or by machinery. The outer tube, b b, may, it' desirable, be coated with a cement of india-rubber or gutta-percha, or may be covered by an outer ot' the same materials.

Having thusl described my improvement, what I claim as my invention, and desire to have secured to me by Letters Patent, is-

A hose or tubing in which the periphery ot' one or more ot' its layers is formed by weav ing or braiding upon an innertube or lining an outer tube made ot' twine, wire, or other strands or threads, substantially as set forth.

THOS.I J. MAYALL.

Witnesses JOSEPH GAvE'r'r, ALBERT W. BROWN. 

